J. Phys. I France
Volume 5, Numéro 10, October 1995
Page(s) 1367 - 1374
DOI: 10.1051/jp1:1995203
J. Phys. I France 5 (1995) 1367-1374

Temporal Coding in Realistic Neural Networks

S.M. Gerasyuta and D.V. Ivanov

Department of Theoretical Physics, St. Petersburg State University 198904, St. Pertersburg, Russia

(Received 18 April 1995, accepted 20 June 1995)

The modification of realistic neural network model have been proposed. The model differs from the Hopfield model because of the two characteristic contributions to synaptic efficacious: the short-time contribution which is determined by the chemical reactions in the synapses and the long-time contribution corresponding to the structural changes of synaptic contacts. The approximation solution of the realistic neural network model equations is obtained. This solution allows us to calculate the postsynaptic potential as function of input. Using the approximate solution of realistic neural network model equations the behaviour of postsynaptic potential of realistic neural network as function of time for the different temporal sequences of stimuli is described. The various outputs are obtained for the different temporal sequences of the given stimuli. These properties of the temporal coding can be exploited as a recognition element capable of being selectively tuned to different inputs.

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